Optically active benzoic ester derivatives

Details Optically active benzoic ester derivatives Optically active benzoic ester derivatives

1986-10-31

1988-08-16

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

544296, 544335, C07C 6976

Patent

active

047646365

ABSTRACT:
An optically active benzoic ester derivative represented by the general formula: ##STR1## wherein R represents a straight chain alkyl group having from 1 to 20 carbon atoms; R' represents a straight chain alkyl group having from 2 to 8 carbon atoms; rings A and B each represents ##STR2## or a trans-1,4-cyclohexane ring; n represents 0 or 1; and C represents an asymmetric carbon atoms. The compounds of formula (I) are capable of providing a chiral nematic liquid crystal composition having a short spiral pitch when added to a nematic liquid crystal composition in a small amount and are useful in the production of SBE display devices having excellent performances in a high level multiplexing driving system.

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